https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105185
Bug ID: 105185
Summary: [12 Regression] ICE in visit_reference_op_call, at
tree-ssa-sccvn.cc:5144
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed between 20220306 and 20220327, at -O1+ :
(derived from pr104825.c)
$ cat z1.c
int foo (fmt)
char* fmt;
{
return (__builtin_strchr (fmt, '*') != 0
|| __builtin_strchr (fmt, 'n') != 0);
}
void bar ()
{
if (foo ())
__builtin_abort ();
}
$ gcc-12-20220403 -c z1.c
$
$ gcc-12-20220403 -c z1.c -O2
during GIMPLE pass: fre
z1.c: In function 'bar':
z1.c:11:1: internal compiler error: Segmentation fault
11 | }
| ^
0xe0a17f crash_signal
../../gcc/toplev.cc:322
0x103c188 contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
../../gcc/tree.h:3570
0x103c188 visit_reference_op_call
../../gcc/tree-ssa-sccvn.cc:5144
0x1046b93 visit_stmt
../../gcc/tree-ssa-sccvn.cc:5847
0x1047bfb process_bb
../../gcc/tree-ssa-sccvn.cc:7482
0x1049c8e do_rpo_vn(function*, edge_def*, bitmap_head*, bool, bool,
vn_lookup_kind)
../../gcc/tree-ssa-sccvn.cc:7967
0x104a75b execute
../../gcc/tree-ssa-sccvn.cc:8233
